Sound-printing machine



May 15. 1928. 1,669,953

J. P. TARBOX SOUND'PRINTING MACHINE Filed v 12. 1 l2 Sheets-Sheet May15, 1928. 1,669,953

J. P. TARBOX SOUND PRINTING MACHINE Original iled Nov. 12. 1921 12Sheets-Sheet P INVENTOE. 3%

May 15. 1928.

. 1,669,953 J. P. TARBOX SOUND PRINTING MACHINE Original Filed NOV. 12.1921 12 Sheets-Sheet 5 INVEHTOE.

May 15, 1928,

-J. P. TARBOX SOUND PRINTING MACHINE Original Filed Nov. 12. 1921 12Sheets-Sheet '4 R m N E V m May 15, 1928. J. P. TARBOX SOUND PRINTINGMACHINE 2 Sheets-Sheet 5 Original Filed Nov. 12, 1921 IN V EN TOR' May15, 1928.

J. P. TARBOX SOUND PRINTING MACHINE 1921 12 Sheets-Sheet 6 a? INVENTOR vYN OriginaIFiled Nov.

May 15, 1928.

J. P. TARBOX SOUND PRINTI NG MACHINE Original Filed Nov. 12. 1921 12Sheets-Sheet 7 m ill; a ,7 m. 1 51 mnn mum

IN VEN TOR May 15, 1928.

J. P. TARB OX SOUND PRINTING MACHINE l2 Sheets-Sheet- Original FiledNov. 12. 1921 May 15, 1928.

J. P. TARBOX SOUND PRINTING MACHINE l2 Sheets-Sheet 10 Original FiledNcv. 12. 1921 v v 3m mmw w WW? I INVENTOR J. P. TARBOX SOUND PRINTINGMACHINE May 15, 1928. 1,669,953

Original Filed Nov. 12. 1921 12 Sheets-Sheet 11 IN V EN TOR May 15,1928. 1,669,953

'J. P. TARBOX SOUND PRINTING MACHINE Original Filed Nov. 12. 1921 12Shefs-Shet 12 IN VEN TOR Patented May 15, 1928.

PATENT OFFICE.

.romv P. TARBOX, or GARDENCITY, ivnw vonx.

SOUND-PRINTING MACHINE.

Original application filed November 12, 1921, Serial No. 564,621.Divided and this application 'filed January 1, 1923. Serial No. 610,083.

My invention relates to what I term a sound printing machine, that isasystem of printing through a control exercised by a device responsiveto tone signals. These signals may be i of any chosen characterwhatsoever, code or otherwise. In it the signals are suflicientlydiilerentiated by characteristically different frequencies or otherwiseto bring about each the response of the diflerent portions of thecontrol mechanism employed. By proper division of the chosen signalsinto groups and syllabic subgroups, the printing may take the form ofcode words, phrases and sentences, and may be divided into paragraphsand epistles. Suitably manually operable keys are provided for use whendesired as an alternate or a conjunctive agency to the signals.Moreover, the arrangementof the control mechanisms is such that they maybe grouped together for compound control by several signals of asingleprinted character, by means of which the printed code may bepunctuated, and use may be made therein of numeral and figurecharacters. Still further mechanisms are combined with the foregoing forthe dating and initialing, both for addressor and addressee, the numberof pages, for record feeding, and the making of duplicate records.

My invention is shown diagramatically in the accompanying drawings; 1

Fig. 1 shows diagrammatically the typewriting mechanism per se includingthe carriage, the type bars, actuating elements therefor, and auxiliarycontrolled and con trol devices;

Fig. 2 shows What I term the register mechanisms, and the page numberingde- 3 shows additional register mechanisms and the normally operablecontrol. keys of the machine;

Fig. 4 shows one form of voice operated control device, or what I term aprimary vibrational control element;

Fig. 5 shows anotherform of the same;

Fig. 6 shows the circuits of the dating and initialling devices; i

Figs. 7 and 8 are sideelevation and trans verse section respectively ofan element of the register mechanism.

Fig. 9 is a longitudinal vertical section of a primary vibrationalcontrol element.

Fig. 10 is a similar section of another form of the same;

Fig. 11 is a front elevation of a diaphrag used in the form of Fig. 9.

Fig. 12 is a longitudinal vertical section of still a third form of thetype of Figs. 9 and 10;

Fig. 13 is a diagram of an intermediate register system making use ofsuccessively acting relays;

Fig. 14 is a diagram of change spelling connections which may be used ifdesired;

Fig. 15 is a front elevation of a proposed special form of typewritingmachine for this work; I

Fig. 16 is an end elevation of the same,

Fig. 17 is a schematic view of the details of the type bar mechanism;

Figs. 18 to 21 are respectively diagrams on a large scale of the primarycontact banks in certain step. by step switches used in Figs. 2 and 6.

This application is a divisionof my application S. N. 564,621, filedNov. 12, 1921,

and is directed particularly to those forms of the tone operated controldevice shown in Figs. 1 and 5 and someother features not covered in thepatent application such the change spelling connections of Fig. 14.These tones may be produced by the human voice, or by any other means,and wherever in this specification the word voice is used, it isunderstood in this sense and understood that it' is intended to producetones. On the other hand, it is recognized that there are othercharacteristics of phonetics.

In Fig. 1 C designates the carriage and platen of any standardtypewriter, and B-B are the horizontal type bar beams, shown insect-ion. To these the type bars are connected as usual. The carriageand platen C are shown as the traversing elements of the machine. Ifdesired instead the has ket of type bars may be made the traversingelement. This has the advantage that the automatic feeding of paper tothe platen from rolls and duplicating by a continuous band of carbon, asshown in Fig. 16, is not interfered with. i I

The carriage is traversed to the left by primary register PR. Fourtrunks to t have contacts 0 to 0 in devices D, and are controlled by acontributing switch DS Cam shafts w: is stepped by device DD governed asbefore by contacts cal in devices d. Shaft ls however is not driven fromdistributing devices DS, but is oscillated. by magnet am. The functionof this portion of the secondary register SR is to register the initialsof the addressee and thereafter effect the impression thereof on eachpage written. A device D is provided for each letter of the alphabet asin the case of mechanism PR.

Two or more devices DD shown on the right hand are permanentlyassociated with the special trunk S25 of the group t" to If, and theconnection is made by these devices D inaccordancc with the control ofpage numbering switch PS. A special. oscillable release shaft at isoperated by magnctmo. The function of this portion of the'device is tosuccessively number the pages written. Fig. 4 shows one form of primaryvibrational control. element. It comprises a special transformer F, andassociated primary transmitter T controlled by relay transmitter T,circuit PG and resonant secondary circuits so. The secondary so governrelays Re, which in turn control the magnet Rm of register devices D(Fig. Circuits so are each tuned to respond to a characteristic soundsignal, differentiated by frequency, or otherwise, various combinationsof resistances, inductances and capacities being used for that purposeas shown. Any combina tion found suitable may be used in any circuit.The coherers (:0 associated with these circuits may be of any known.type, and decohering (if necessary with the type) accomplished in anyknown way. i

Ke s A. B .3 etc. are )rovided on the.

. i a 1 l register side of relays Rc for the manual. operation of themachine, and keys 7 on the transmitter side for manual operation thrurelays Re.

The mechanism SM at the lower right the spacing and syllabizingmechanisn'i which is operated altogether automatically. MG is a motorgenerator set of small size furnishing current for the operation of thevarious devices of the machine by positive and negative bus wires PB andNB. I v

The mechanism DA of Fig. 6 is the dating mechanism. It comprises sixmai'iually set number switches N8 having contacts connected in multipleto the magnets Am of the numeral characters, trunks as leading therefromand a switch ES controlling the energization of the trunks.

The mechanism I'm is the initialling mechanism. It comprises three 0more manually set initial switches Is having contacts multiply connectedto the actuating magnets Am of the letter characters, and like themechanism DA, trunks leading to and energized by an energizing switchES.

' The various details of the machine and its circuits will be describedin connection with the operation.

Sound signals are projected into the tramlnittcr T Thru the action oftransmitter circuit 11. on repeater transmitter T (or upon any known.form of repeater device) the amplitude, intensity and volume of thewaves is increased. Acting on transformer F thru primary winding 390,the waves may be still further increased in size. T he waves of eachletter energizes one or more predetermined tuned circuits so, and thruassociated coherers or detectors 00 close the circuits of associateddirect current relays RE. Each relay (or combination of relays as willappear hereinafter) controls by its contacts circuit as follows,including a magnet rm of register devices D. Bus NB at the relays,conductors 12, contacts 1.3 (or 13 and 13, according to the combinationof relays Re), conductor let, magnet rm and bus PB at devices D. Magnetrm being energized pulls up that tier of contacts 6 to 6 whose verticalbar 11 is at that time pushed forward by cams c on shaft as. We willassume this ticr is tier 6 connecting with trunk 15 (see Figs. 7 and 8).The circuit of the associated actuating magnet'Am is therefore closedfrom trunk-t, thru contacts as of tier e, (whichmay be identified inFig. conductor 15, winding w of magnet Am, and. to the bus PB, then tobus'NB at switch (ZR, arm 16, contact it; of contacts 16, 17, 18, 19 and16, 17, 18', 19 (connected respectivet in diametrically opposite pairswith trunks t to 7'7) to trunk t. Vinding w of magnet Am becomingenergizcd. draws its core or armature down and operates the type beam l3to print the letter character dictated. 1

hen tier 0 of (lQVlI'Q D was pulled up it closed by contacts (:(Z one ofthe four loops 20 to 20 which loops are multiplied respectively to thecontacts rd of the various devices D. This energizes one of the four(only one is shown.) actuating magnetssm associated with device DD. andsteps the upper ram shaft us, thus rotating the shaft 'us one step(shown as one-quarter revolution, but it may well he is and pusl'iingforward the actuating bar W (Figs. 6 and 7) of the second tier of eachdevice D, into position to be engaged by the a rn'm tures of magnetsWin. In the meantime the bar '0 previously actuated is held in actuatedposition by the engagement of its foot f, with the common holding, barIt Figs. 7 and 8). Therefore when the armature of magnet rm drops backupon degenerization the previously actuated contacts of tier remain inactuated position. This is true of eachtier of contacts, and moreovereach ilt) tier closes its associated loop of the group 20 to 20*, eachthus stepping the device DD and shaft us one step. Thus is secured avery important result. Characters successively registered on primaryregister PR are identified each with a different trunk of the group 6 to6*, since each tier of each.

group (2 to e makes connection with a different one of the trunks. Thisadmits of sound, signaling at any and all rates within wide variations,and in case a group is rapidly made, several code characters may beregistered on register PR during the printing of one. By increasing thenumber of tiers of contacts 0 to e per device D and the number of trunkst to t" the permissible number of advance registrations may beincreased.

Each time an actuating magnet Am pulls up over a circuit closed from adevice D of the register mechanism, at or near the limit of movement ofthe type beam B, a limit switch 7).? is actuated to close the loop 21which closes the circuit of an actuating magnet gm of stepping deviceRD, thus stepping switch Ds one point, Thus the wiper 16 energizestrunks t to t successively from bus NB, and in the same order as thetrunks are associated by cams 0 with tiers e to c in the stepping ofdevice DD. By this means the plurality of registered characters aresuccessively printed, not in the time succession in which they aresignaled and registered, but in accordance with the natural operatingspeed of the typewriting machine itself. This is the ideal method, forirrespective of variations in rapidity of signaling, between onesyllable and another, one Word and another, and of different operators,the printing speed is independent, and determined at all times by thenatural (which is by far the most rapid and smooth) speed of themachine. Nor do variations in the rate'of action of any type bar causeany disturbance in. the regular operation, each succeedingly operatedbar being dependent upon the rate of operation of the precedinglyoperated bar for the initiation of its operation.

Obviously this method of operation is of value in manually operatedtypewriters as well as typewriters of this type, for the rates ofoperation on the individual type bars are independent of the rate andthe time order of succession of operation of the various keys. Thuscrossing or sticking of type bars, and disorderly operation of any sortis positively prevented. Controlling keys A, B, C, etc, Fig. 4, areprovided in shunt to the relays Re (Figs. 4 and 5) for manual operationand control of the circuits of the register magnets rm.

The number of trunks t to t may be increased or decreased at will tosuit any existing conditions, the associated apparatus being readilyallowed by the skilled operator to suit in point of number of steps,cams, contacts, etc,

The trunks t to t are successively re leased from devices D by thestepping of lower cam shaft Z8 which pushes the feet from bar h. Thisstepping takes place from and in synchronism with the stepping ofswitch(is, being connected therewith by chain or other gearing connection go.The cams 0 of shaft Z8 are arranged in the same order, but one stepbehind as respects contacts 16 to 20, etc. of switch ds, so that uponthe energization of each trunk by switch 018, the preceding one isreleased by cams c from the then associated device D. In other words therelease of any trunk takes place as the next succeeding trunk isenergized. Therefore there is always available one or more tree trunks.As many as three of the four (or {our of five, etc.) may be tied up totie vices I) at one time but upon momentary slowing up or cessation ofdictation the printing catches up and they are successively freed,whereupon they are all available. The adaptability of this method asbetween operator and machine is full and complete. The personal equationof the dictator alters in no way the orderly operation of the machine.

The operation of all other elemental letter controlling and actuatingcircuits from the vocal analyzer of Fig. 4: is substantially the samefor each letter of the alphabet and hence need not be individuallytraced herein, There is one exception to be found in the circuits ofthose characters identified by the energization of a plural number ofresonant circuits so. Suppose one signal sound characterized byfrequency or Wave form a, another by d, and a third by both it and d. Ifsimple circuits as that just traced from relays Re be used then thesignaling of the third signal will pull up register devices D of boththe first two. But combination circuits are used as shown for the sakeof illustrating in connection with the circuits controlled by the .A andD keys (Fig. 4.). The A circuit 14 governed by normally openedcontacts-13 of the A relay Re extends thru normally closed contacts 18,and vice versa, whereby it'either the A relay or the D relay Re pulls upsingly, the particular individual circuit A or D is closed to conductor14, but if both the A and D relays Re pull up in response to making of athird signal, both the A and D circuits are opened at contacts 13 andinstead a third circuit 14 of the C key is closed thru normally opencontacts 13 on relays of the A and D circuits in series. Thus arecombinations and interlocks made to efi'ectregistration ordifferentiation oi": the complex sounds from each other. The skilledengineer may work out as many of these combination and interlocks asdesirable, using any of the combinational and interlocking circuitarrangements known to the art, whereby each signal sound is positivelyidentified with the cir cuit ll of a single code character A, B, C, etc.including a. single register magnet rm.

Cop ital letters.

Any signal or group of signals may be code printed in capital letters bysimply pressing the CAPS'control key of Fig. 3. The pressure of this keycloses the circuit of caps magnet Cs, Fig. 1, as follows; Bus NB, capskey, conductor 22 device D, 22 (Fig. 6, Fig. 1) magnet Cs and to bus PB.This shifts carriage C, and as long as the CAPS key is held depressed,all sound sig-- nals made are coded in capital letters. If, however, theCAPS key is only momentarily pressed the CAPS magnet Cs locks itself upthrn normally closed contacts 23 and 24 of relay 25 by conductors 26 and27, from bus NB. Relay 25 is in one arm of loop 21 which is closed eachtime a type bar B actuated. Hence upon printing of the first letterafterthe caps key is released, the locking circuit of C8 is broken at23, 24, and the carriage C returns to normal position. Thus the firstletter only of each code sentence is capitalized. It is necessary onlyto use this key at the beginning of signaling, as a rule, as will beseen hereafter.

The time of closure of the loop 21 and consequent energization of relay25 may be varied at will through adjustment of cores C or theirconnected parts, which strike contacts be, so as to bear any desiredrelation to the stroke of the type bars. .The magnet C5 is shown asoperating thru lever 132 and abutment 183 directly upon one end of thecarriage C, but it will be understood that this showing is diagrammatic,and that the magnet Cs (and the magnet Fs) operate upon any of thestandard carriage shifting levers or other parts now used for that purpose.

Spacing.

are two ways disclosed of accomplishing this,

differentiation. The first, embodied in Fig. 4, depends upon thepresence or absence of the fundamental note in any signal. A specialwinding 28 is placed on transformer F, and operatively connected byspecial timed circuit 29 and coherer 00, with the special relay 80 ofthe group Re. The cir cuit 29 is tuned to respond to the fundamentalonly. Consequently relay 30 is energized only when the fundamental toneis being sounded. Now by making sound signals carefully in syllables, itwill be observed that the cessation of fundamental tone in each casemarks the division of the group signal into syllables, and furthermoremarks the distinction between group signals. The fundamental ceases fora longer period between group signals than between syllables thereof,and we can and do at will vary the difference in length between theseperiods, generally to increase the length of the period between groups.This latter results in succinctness.

Now the time of degenerization of the relay 30 measures the length ofthese periods.

Relay 30 controls a relay 31 of the spacing mechanism s-m by a circuitfrom PB, con ductor 32, relay 31, and to bus N B. Relay 31 in turncontrols by circuit NB, armature 34;, front contact 35, conductor 36, arelay 37, of what is commonly known to the art as the slow relay type.Thisrelay is provided usually with a copper sheath for its case, wherebythe time of its release or falling back is increased. As is well knowninthe art this type of relay may be constructed and adjusted to fall backmore or less rapidly. With respect to the time of fall.- ing back ofthis relay the time of cessation of the fundamental as measured by relay30 iscompared. Relay 31 also when it pulls up energizes locking relayover circuit NB, armature 41, front contact 42, conductor 43, relay 40and to bus PB. Belay 40 locks up thru conductor 44, front contact 45,conductor -16, (Fig. 2) normally closed contacts 47, .on dash registerdevice I) of register PR conductor 48 (Fig. 3), normally closed contacts49 on space register device I), conductor 52 to negative bus NB..Contacts 47, 49 and 51 are opened whenever devices D are energized,being of the character of con tacts 4.7 shown in Figs. 6 and 7 Thusrelay 40 (Fig. 4:) when locked up is unlocked upon the registration ofany one of dash, traverse or space movements.

When relay 40 is locked up and relay 31 falls back a second lockingrelay 53 is pulled up from NB, armature 4-1., back contact 54,

conductor 55, front contact 56 of relay 40,

conductor 57, relay53, conductor 58 (Fig. 2) (Fig. 1), left limit switch19m" when the same is closed and to battery PB. Thisrelay 53, therefore,is pulled up when. relay 31 falls back when the left limit switch 6m ofthe carriage C is closed, and this switch is arranged to be closedwhenever the writing reaches the marginal limit at the end of each lineand thru-out the right marginal space usually guardedby a bell forsyllabizing.

ion

lit)

Relay 53 looks up by conductor 59 to conductor 46 and over the samelocking circuit as traced for relay 40.

Now relay 30 and hence relay 31, falls back each time the fundamentalceases, both between group signals and between syllables thereof. Ifbetween syllables the interval of deenergization is too short to permitthe slow acting relay 37 to release, but each time relay 31 falls backit partially closes the circuit of relay 53 at its back contact 54, thustact 60, conductor 61 (Fig. 2), bell relay 62,

and bus PB, and the second from bus NB, thru front contact 3% of relay31, conductor 36, front contact 64 of relay 53, conductor 65 (Fig. 2),magnet rm of dash register D, to PB, thus registering a dash forprinting after the latest syllable signaled. Note that this registrationtakes place only when relay 31 pulls up when relay 53 has locked up onthe marginal-limit switch Zm, but it does not always take place whenthese conditions are present.

If before relay 31 has pulled up, there has been time interval (duringthe absence of the fundamental tone) sufficient for slow relay 37 todrop back, this relay closes a circuit by its back contact 66, conductor67, front contact 68 of the first lockin relay 40, conductor 69 (Fig. 2)(Fig. 3 back contact 70 of relay 69, conductor 71, conductor 7 andmagnetrmi of the space'register device spa, and to bus PB. Thus if therehas been time for slow relay 37 to fall back a space is registered. Theenergization of the magnet rm of the space register opens contacts 4C9in the locking circuit of relays 4.0 and 53, and they fall back, wherebywhen relay 31 again pulls up, the syllable register circuit previouslytraced is open at contact 6 1 of relay 53 and the dash register is notenergized.

Relay 37, as aforesaid, is a means of measuring the time interval ofcessation of sound signaling or of the fundamental pitch ofthe sound asindicated by the time of de-energization of relay 31. Locking relay 40functions principally as a means to enable the relay 31 to test for themarginal condition established by switch Zm! on its back stroke only. Inother words it functions as would switching contact made by relay 31 inone direction only. Many forms ofthis are known and may be used. Relay53 energized on the back stroke of relay 31 is an indicator of theexistence of the test condition sought by relay 31.

To recapitulate, if when the test condition is indicated by relay 53,the interval of time permits relay 37 to fall back, the circuit 69 ofthe space register is closed and relay 53 de energized, but if beforethis, the relay 31 again pulls up, the circuit 65 of the dash registeris closed thru contacts of relay 53 and the relay 53 thereafterdeenergized by the opening of contacts 47 in the locking circuit. Insound signals one has only to make the time intervals between signalsyllables less than that taken by slow relay 3'? to'fall back, and thatbetween signal groups slightly greater, and spacing and syllabizing willtake place automatically.

Now resuming at the point where the space register becomes energized,(Fig. 3) it will be noted that relay 69 is deenergized only when themarginal test condition of switch Zm is absent. Thus the space registeris actuated only in the absenceof the mar inal test condition. Whenswitch Zm is closed 69 is energized over conductor 58 and by conductors73 (Figs. 2 and 3) to NB. This shifts armature 7 1 from back contact 70to front contact 75 from which extends conductor .7 6 to the traverseregister device D. Hence when relay 37 fallsback. with the printing onthe margin, traverse is immediately registered instead of a space. Thiscauses operation of-the traverse motor TM Without delay as will be laterdescribed to shift the carriage (l to the beginning of the next line.

When relay 37 does not fall back, relay 31 on pulling up on the marginalcondition as aforesaid registers a dash. As in the case of traverse:this registration is printed in orderimmediately following the lastletter of the preceding syllable. In registration when the marginalcondition is present (not at other times) the dash register closes byfront contacts 77 circuit from PB thru switch Zm, conductor 58,conductors 78 and 79 (Fig. 3) relay 80 and conductor 81 to NE. Relay 80locks itself to battery PB by conductor 82 thru contacts :83 on traverseregister device D, and partially closes by contacts 84: the circuit ofthe traverse register D thru conductor 85 from conductor 76, conductor'86 (Fig. 2), and back contact of dash register D to battery NB byconductor 87. Thus when a dash marks a syllable on the margin, traverseis registered upon the falling back of the dash register, and thecarriage G is traversed immediately upon the printing of the dash, as itshould be. to the beginning of the next line.

Now the dash is a mark of punctuation, and as such is representative ofits class. Although limited space prohibits the showing, it is intendedthat the registry of any mark of punctuation marking the termination ofa syllable, word, or numeral, and the like, shall cause the succeedingregistry of the transverse of the carriage C to the begin ning of a newline. To this end the register circuits and devices of the said otherpunctuation marks will be associated whenever found desirable, with thecircuits of the traverse register in the manner described in connectionwith the dash register.

There are some cases in which this association will be unnecessary onaccount of the occurrence of a space interval immediately following thesound signaling of the mark (for they are signaled as well as codeletter characters), the timing relay 3'? then registering traverseinstead of space as previously set forth.

Obviously in the absence of the marginal test condition and the printingin the body of the lines, while the relay 31 continuously tests for themarginal. condition, no syllables are marked as a result of such test,for relay 53 is deenergized until the marginal condition is found. Onthe other hand whenever timing relay 37 measures a space interval itcloses by conductor 69 independently of relay 63, the circuit of thespace register D thru the back contact of the now deenergized relay 69"as traced above.

It has been said the bell relay 62 (Fig. 2) furnishes a guide to thedictator as to marginal shifting. This relay upon being energized byrelay 53, closes one circuit, opens another, and locks itself up. Thefirst circuit is that of the bell magnet 88 extending from PB thru frontcontact 89 by conductor 90 to the magnet and thence by conductor 91 toNE. The circuit opened is the bus PB of the code letter registers D, andthe opening is at back contact 92. The look ing circuit is by frontcontact 93 to conductor 94; (Fig. 1) to normally closed contacts 95onthe right hand limit switch Zm, and to NB (disregard for the moment loop168). Thus relay 62 remains locked up until the carriage C is shifted tothe beginning of the new line whereupon it is unlocked. It should bementioned by the way that the line feed is accomplished by the traverseaction as in the standard Oliver machine, or else may be accomplishedthru the actuation of the line feed mechanism Lf shown by closing itscircuit by special contacts controlled from the traverse register, thecircuit 144 of the traverse motor or switch Zm. It may also be mentionedthat the points of operation of the switches Zm and Zm may be adjustedat will thru adjustment suitably provided for an of the associated partsas may readily be c one by the skilled engineer in accordance with thealready known marginal adjustments of standard typewriting machines.

Hearing the bell 9G rung by magnet 88 (Fig. 2), the operator signals thenext syllable of the signal group as if nothing had happened and thenstops. The code letthe circuit of another bell 99 of the same ordifferent tone from the bell 96, whereby the operator is advised toproceed signaling,

which he does by beginning at the point where the first bell 96 sounded.The bells follow each other of course in quick succes sion.

Pa n-cauction.

Punctuation marks are signaled and reg-- istered and printed, as are thecode letters. This is accomplished by series circuits thru contacts of aplurality of devices D, those entering into the combination in any casebeing a portion or all of those code letter registers spelling the nameof the punctuation mark. Thus for a semi-colon, the registers of lettersSEM, etc. would figure in total or in part.

Referring to Figs. 9., 7 and 8, it will be seen that a number ofregisters D of the primary mechanism PR contain normally open sets ofcontacts 100 electrically insulated from each other. These may bemounted like contacts 17. Series conductors 1.01 are each completed bythe closure of a plurality of sets of contacts 100. Conductors 101extend from devices D not to windings to, but to windings 10 ofactuating magnets Am (Fig. 1), windings to" being connected with aspecial bus PB separate from that PB as sociated with windings in w. Thebus P13 is normally open at contacts 102 controlled by figures magnet Fawhile the bus PE is normally closed at contacts 103 controlled by thesame magnet. Thus normally when registers'D are actuated by code lettergroup signaling windings w are energized one from each individualregister as aforesaid, over circuits 15, the closure of any one of theseries circuits 101, being without effect owing to the break in bus PBat .102. Then numerals or punctuation marks are to be printed, however,the FIGS. Key (Fig. 8) is pressed down, whereupon Figs. magnet. Febecomes energized over circuit presently to be traced, closing 102 andsimultaneously opening 103. WVindings w and circuits 15 are now disabledand windings w and circuits 101 enabled.

Now the magnets am of the trunk distributer DD are energized normallyover circuits 20, to 20 under control of the in dividual registers D,are shifted by magnets F3 from circuits 20 to 20 to circuit 104:, undercontrol by switch 105 of the control switch RD (Fig. 1). Switch 105comprises a wiper 106 stepped over contacts 107 connected commonly withcircuit 104 which circuit puts battery PB on magnets cm of distributingdevice DD (Fig. 2). The magnets cm are thus energized singly as thedevice RD is stepped by closure of circuit 21 (Fig. 1). The devices Dare thus shifted from one trunk to another only upon the energization ofthe printing magnets e0 Thus the several letter registers D (as forinstance and I governing the circuit of semicolon printing magnet w allpull up on the same one of the trunks t to If, which is as it should befor proper. control thru master switch RD.

It is particularly to be noted that figure characters and not capitalletters are code printed in this manner and further that. any

desired figure character whatsoever may be code signaled to the machineand will be code printed properly by it, the essential requisite beingthat each register combination shall be different from each other, andthat each of the series circuits 101 shall be maintained electricallyseparated frou'i each other.

To this end it is best that no single pair of contacts be: used in morethan one circuit 101, duplicate pairs 100 being pro vided on each deviceD (see Fig. 7) when needed and all actuated simultaneously in the same.manner.

WVhen the FIGS. key (Fig. 3) is pressed to print the dictated figures,the circuit of the Figs. shift magnet F8 is closed as follows; FIGS key(Fig. 3 from bus NB of the keys, conductor 129, Fig. register device andbattery PB. The Figs. register pulling up closes directly the circuit offigures shift magnet F8 from trunk t (or t to if) corresponding contact0a of tier 6 (see also Figs. 6 and 7), conductor 130 (all secondcontacts can of tiers e are connected in multiple to conductor 130), asto conductors 15 of the character actuating magnets), conductor 130,Figs. 6 and 1, magnet Fe and battery bus PB, thence to bus N B atdistributing switch 035, Fig. 1 wiper 16, contact 16 and trunk t (or tto 25") back to contact cc of the FIGS. register of Fig. 3. When theFIGS. key is released the platen is at once returned to normalposition,and

the restoration of all circuits to normal effected.

Automatic caps, shift from period.

Vhenever a period is printed the registration of a space and then of acapital for the beginning of the next sentence automatically follows.Upon the energization of circuit 101 of the period printing magnet 108(Fig. 1), a relay 109 in series with printing magnet 108 is pulled up.This relay closes two circuits from bus NB, the one 110 from contact 111and the other 112 from contact 113. The first 110, extends thru Fig. 6into Fig. 3, and thence thru normally closed contacts 11s on a relay 170 (presen ly to be described) to relay 116, and to PB.

The second circuit 112 from relay 10.9 BX- tends likewise thru Figs. 6to Fig. 3, and thence thru a relay 117 to PB. Relay 116 of the pair 116,117, being energized, closes a locking circuit 118 for itself thru frontcontact 119 and back contacts 120011 the space register SPC. Relay 116also closes the energizing circuit of the space register by its frontcontact 121 and conductor 12-2 connecting with conductor172 previouslydescribed. Thus a space is automatically registered and properly printedafter each period. Prompt-1y upon registration of the space the lockingcircuit 118 is broken and relay 116 returns to normal.

But relay 117 having become energized over circuit 112, closesby one ofits, fron contacts 123 a locking circuit 124 for itself extending thru.normally closed contacts on the CAPS register, and thereby not openeduntil the caps register pulls up. By its other front contact itpartially closes circuit 126 tacts 127. Thereupon relay 125 pulls up,

locks itself by 128 over circuit 124 previously traced, and closescircuit 22 of the register upon the energizat-ion of which both relays117 and 125 are unlocked and fall back. All this takes place in a momentof time, but nevertheless in the orderly sequence set forth. Thus spacefollowing a period is registered on one trunk t to t and capitals on thenextsucceeding, just as in the case of letters and figures.

It is to be understood that although not shown in every case for thesake of clearness, every actuating magnet energized from the primaryregister PR containsa pair of contacts in multiple with those 68 on loop21 (F ig. 1), whereby the distributor switch RD is actuated one step foreach energization of any such magnet.

The Caps, register CAPS closes upon the then waiting trunk t to 23* acircuit thru con. ductor 22 (Figs. 3 and 6 then Fig. 1) [0 caps shiftmagnets Cs. Upon the actuation of the spacing magnet Sal (Fig. 1) andwhich by the wayv is energized over a circuit 131 from the spaceregister .SiC, Fig. 3, Fig. 6 and Fig. 1, following the printing of theperiod, the ensuing step of the device RD energizes caps magnet Cs overthe associated trunk t to i Cs shifts the carriage C (the basket of typebars, or the equivalent) thru connection 132 with abutment 133,preferably separate from connection 131, and abutment 135 actuated byF8. Unlike F8 however Cs does not break the normal connections of PB,for circuits 101 are not to sa a sro Jun

